Treacherous Ground shuts down Maeve's mobility quite handily if you can catch her with it, but be wary of nearby terrain. A smart Maeve can use some bits of map geometry to get above the effect of Warder's Field and become free from the cripple.
If she ults hide behind something big enough to cover your whole champion. This way you can dogde all the damage and have it explode on the other side of the wall.
Sha Lin's ultimate can make him hard to track, but throwing down a Sensor Drone near where he was last seen will reveal him for your team and partially negate his ult.